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Subject[PATCH 2/9] memblock tests: Add simulation of physical memory
Date
Allocation functions that return virtual addresses (with an exception
of _raw variant) clear the allocated memory after reserving it. This
requires valid memory ranges in memblock.memory.

Introduce memory_block variable to store memory that can be registered
with memblock data structure. Move assert.h and size.h includes to common.h
to share them between the test files.

Signed-off-by: Karolina Drobnik <karolinadrobnik@gmail.com>
---
tools/testing/memblock/tests/basic_api.c | 1 -
tools/testing/memblock/tests/basic_api.h | 1 -
tools/testing/memblock/tests/common.c | 19 +++++++++++++++++++
tools/testing/memblock/tests/common.h | 18 ++++++++++++++++++
4 files changed, 37 insertions(+), 2 deletions(-)

diff --git a/tools/testing/memblock/tests/basic_api.c b/tools/testing/memblock/tests/basic_api.c
index d5035a3dcce8..fbc1ce160303 100644
--- a/tools/testing/memblock/tests/basic_api.c
+++ b/tools/testing/memblock/tests/basic_api.c
@@ -1,7 +1,6 @@
// SPDX-License-Identifier: GPL-2.0-or-later
#include <string.h>
#include <linux/memblock.h>
-#include <linux/sizes.h>
#include "basic_api.h"

#define EXPECTED_MEMBLOCK_REGIONS 128
diff --git a/tools/testing/memblock/tests/basic_api.h b/tools/testing/memblock/tests/basic_api.h
index 1ceecfca1f47..1873faa54754 100644
--- a/tools/testing/memblock/tests/basic_api.h
+++ b/tools/testing/memblock/tests/basic_api.h
@@ -2,7 +2,6 @@
#ifndef _MEMBLOCK_BASIC_H
#define _MEMBLOCK_BASIC_H

-#include <assert.h>
#include "common.h"

int memblock_basic_checks(void);
diff --git a/tools/testing/memblock/tests/common.c b/tools/testing/memblock/tests/common.c
index dd7e87c589fe..62d3191f7c9a 100644
--- a/tools/testing/memblock/tests/common.c
+++ b/tools/testing/memblock/tests/common.c
@@ -5,6 +5,8 @@
#define INIT_MEMBLOCK_REGIONS 128
#define INIT_MEMBLOCK_RESERVED_REGIONS INIT_MEMBLOCK_REGIONS

+static struct test_memory memory_block;
+
void reset_memblock_regions(void)
{
memset(memblock.memory.regions, 0,
@@ -27,3 +29,20 @@ void reset_memblock_attributes(void)
memblock.bottom_up = false;
memblock.current_limit = MEMBLOCK_ALLOC_ANYWHERE;
}
+
+void setup_memblock(void)
+{
+ reset_memblock_regions();
+ memblock_add((phys_addr_t)memory_block.base, MEM_SIZE);
+}
+
+void dummy_physical_memory_init(void)
+{
+ memory_block.base = malloc(MEM_SIZE);
+ assert(memory_block.base);
+}
+
+void dummy_physical_memory_cleanup(void)
+{
+ free(memory_block.base);
+}
diff --git a/tools/testing/memblock/tests/common.h b/tools/testing/memblock/tests/common.h
index b864c64fb60f..619054d03219 100644
--- a/tools/testing/memblock/tests/common.h
+++ b/tools/testing/memblock/tests/common.h
@@ -2,8 +2,23 @@
#ifndef _MEMBLOCK_TEST_H
#define _MEMBLOCK_TEST_H

+#include <stdlib.h>
+#include <assert.h>
#include <linux/types.h>
#include <linux/memblock.h>
+#include <linux/sizes.h>
+
+#define MEM_SIZE SZ_16K
+
+/*
+ * Available memory registered with memblock needs to be valid for allocs
+ * test to run. This is a convenience wrapper for memory allocated in
+ * dummy_physical_memory_init() that is later registered with memblock
+ * in setup_memblock().
+ */
+struct test_memory {
+ void *base;
+};

struct region {
phys_addr_t base;
@@ -12,5 +27,8 @@ struct region {

void reset_memblock_regions(void);
void reset_memblock_attributes(void);
+void setup_memblock(void);
+void dummy_physical_memory_init(void);
+void dummy_physical_memory_cleanup(void);

#endif
--
2.30.2
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